US2558140A - Vulcanizing press for rubber tires - Google Patents

Vulcanizing press for rubber tires Download PDF

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Publication number
US2558140A
US2558140A US791043A US79104347A US2558140A US 2558140 A US2558140 A US 2558140A US 791043 A US791043 A US 791043A US 79104347 A US79104347 A US 79104347A US 2558140 A US2558140 A US 2558140A
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US
United States
Prior art keywords
press
supporting
same
crank shaft
hinged
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US791043A
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English (en)
Inventor
Kruzik Arnost
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BATA NARODNI PODNIK
Original Assignee
BATA NARODNI PODNIK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BATA NARODNI PODNIK filed Critical BATA NARODNI PODNIK
Application granted granted Critical
Publication of US2558140A publication Critical patent/US2558140A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18184—Crank, pitman, and lever

Definitions

  • vulcanising moulds which are housed in supporting parts, of which the lower part is fixed and immovable, whilst the middle part and the upper part are capable of being hinged up.
  • the upper supporting part In order to enable the tyres to be placed into and removed from the moulds, the upper supporting part must be hinged up independently, after which the middle part is hinged up. When closing the press, the procedure is reversed.
  • the hinged parts of the press could be controlled by means of a single hydraulic piston.
  • the upper supporting part swings about the pivotal point through almost 90 and the middle supporting part through almost 45.
  • the essential feature of the present invention resides in the constructional form of a crank mechanism for a vulcanizing press for simultaneously vulcanising two rubber tyres, which mechanism is provided with curved members. These curved members enable the vulcanising mould to be opened and closed with a minimum swinging motion of the supporting parts, that is to say one of at most 45.
  • the crank mechanism is common to both hinged parts.
  • the crank shaft is driven in the same direction of rotation both when opening and closing the mould.
  • the motor I of the press ( Figure 2), which is started for instance by means of a manual switch (not shown), and stopped by automatic switches (not shown), drives the worm 2, which engages in a worm wheel 3, keyed together with a toothed wheel 5 on the shaft 4.
  • the toothed wheel 5 meshes with another toothed wheel 6, which drives the crank shaft 1.
  • This crank shaft 1 supports on its ends cranks 8 with crank pins 9, on which the lower eyes of two pull bars 10 are mounted.
  • the upper eyes of the pull bars engage over pins l2 on the upper supporting part l3 and control the swinging motion of the latter about the pivot pin H.
  • both pull bars are provided with curved members l6, which coact with the pins l1 and roller [8 on the middle supporting part.
  • the rollers 18 mounted on the pins I! roll on the said curved members and thereby bring about the upward and downward hingeing of the middle supporting part.
  • the press After the completion of the vulcanising operation the press is started the electric motor commencing to turn the crank shaft 1.
  • the press begins to open, only the upper supporting part being hinged upwards to start with ( Figure 2) and the middle supporting part lagging in accordance with the mode of acceleration imparted by the curved members, so that at the end of the stroke, that is to say, when the cranks have performed a rotation of about both hinged up supporting parts are raised through the same angle a, a1 and are separated from one another by a gap a ( Figure 3).
  • the press then is stopped by one of the automatic switches, the vulcanised tyre is removed from the lower supporting part and an unvulcanised tyre is put in in place of it.
  • the press is restarted and the two movable supporting parts 3 begin to close down.
  • the middle supporting part is closed more rapidly than the upper part.
  • the curved members are given a suitable form forthis purpose.
  • an actuating mechanism for openingand closing-a v-ulcanizing press having a fixed bottom mold member,- an intermediate hinged mold merriher-and a top-hinged mold member iior simultaneouslyvulcanizing two; rubber tires,- the com; bination of a crankshaft journaled in said fixed member, means-for rotating said cgank shaft', a

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
US791043A 1946-12-14 1947-12-11 Vulcanizing press for rubber tires Expired - Lifetime US2558140A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS260148X 1946-12-14

Publications (1)

Publication Number Publication Date
US2558140A true US2558140A (en) 1951-06-26

Family

ID=5451520

Family Applications (1)

Application Number Title Priority Date Filing Date
US791043A Expired - Lifetime US2558140A (en) 1946-12-14 1947-12-11 Vulcanizing press for rubber tires

Country Status (4)

Country Link
US (1) US2558140A (enrdf_load_stackoverflow)
CH (1) CH260148A (enrdf_load_stackoverflow)
FR (1) FR956900A (enrdf_load_stackoverflow)
GB (1) GB648704A (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2821747A (en) * 1955-07-27 1958-02-04 Aetna Standard Eng Co Molding press
US2874458A (en) * 1955-10-10 1959-02-24 Firestone Tire & Rubber Co Method of making an air spring
US2945267A (en) * 1958-07-03 1960-07-19 Michael J Tracy Closure-operators
US2963075A (en) * 1954-09-09 1960-12-06 Gen Motors Corp Seat adjuster
US3357266A (en) * 1965-11-03 1967-12-12 Techtmann Ind Inc Heavy duty bar-type sealer having motor-operated jaw means
US3389610A (en) * 1966-02-23 1968-06-25 Clarence B. Knudson Switch actuating device
US4060365A (en) * 1975-04-08 1977-11-29 Duarte Ruben G Dough press
US4329867A (en) * 1980-06-05 1982-05-18 Nelson Richard E Articulating frame press
US4909972A (en) * 1985-12-02 1990-03-20 Britz Johannes H Method and apparatus for making a solid foamed tire core

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1969217A (en) * 1932-09-07 1934-08-07 Goodrich Co B F Vulcanizer
US2028618A (en) * 1932-06-25 1936-01-21 Macbeth Colin Vulcanizing press
US2029060A (en) * 1933-02-20 1936-01-28 Pirelli Vulcanizing press for pneumatic tires, inner tubes, and similar articles
US2308977A (en) * 1939-02-17 1943-01-19 Nat Rubber Machinery Co Vulcanizing press

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2028618A (en) * 1932-06-25 1936-01-21 Macbeth Colin Vulcanizing press
US1969217A (en) * 1932-09-07 1934-08-07 Goodrich Co B F Vulcanizer
US2029060A (en) * 1933-02-20 1936-01-28 Pirelli Vulcanizing press for pneumatic tires, inner tubes, and similar articles
US2308977A (en) * 1939-02-17 1943-01-19 Nat Rubber Machinery Co Vulcanizing press

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2963075A (en) * 1954-09-09 1960-12-06 Gen Motors Corp Seat adjuster
US2821747A (en) * 1955-07-27 1958-02-04 Aetna Standard Eng Co Molding press
US2874458A (en) * 1955-10-10 1959-02-24 Firestone Tire & Rubber Co Method of making an air spring
US2945267A (en) * 1958-07-03 1960-07-19 Michael J Tracy Closure-operators
US3357266A (en) * 1965-11-03 1967-12-12 Techtmann Ind Inc Heavy duty bar-type sealer having motor-operated jaw means
US3389610A (en) * 1966-02-23 1968-06-25 Clarence B. Knudson Switch actuating device
US4060365A (en) * 1975-04-08 1977-11-29 Duarte Ruben G Dough press
US4329867A (en) * 1980-06-05 1982-05-18 Nelson Richard E Articulating frame press
US4909972A (en) * 1985-12-02 1990-03-20 Britz Johannes H Method and apparatus for making a solid foamed tire core

Also Published As

Publication number Publication date
CH260148A (de) 1949-02-28
FR956900A (enrdf_load_stackoverflow) 1950-02-09
GB648704A (en) 1951-01-10

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